Question

The accepted value of ksp is 1.2×10^−12 for Ag2CrO4. Calculate the percentage error if your experimentally determined value for ksp was 1.7×10^−10.

Answer 1

%error = |(original value - mistaken value)| / original value * 100%

Original value = 1.2 x 10^-12
Mistaken value = 1.7 x 10^-10

%error = | [(1.2 x 10^-12) - (1.7 x 10^-10)] | / 1.2 x 10^-12 x 100%

%error = (1.688 x 10^-10 / 1.2 x 10^-12) x 100%

%error = 1.172222222 x 10^17